Firefox 18.0.1 will not download .pdf from internet, add-on incompatible with Acrobat X

All that happens now is that, when I click on a PDF Google result, a page with the correct URL opens, but no file is downloaded. If I use Quick View, however, I go to the PDF on the site. If I click Download Original, I just get the blank page again. Any ideas?

The Add-Ons manager says: Adobe Acrobat - Create PDF 1 (disabled)
All that happens now is that, when I click on a PDF Google result, a page with the correct URL opens, but no file is downloaded. If I use Quick View, however, I go to the PDF on the site. If I click Download Original, I just get the blank page again. Any ideas?

Chosen Solution

Question owner

Sorry, Madperson. I thought your reply would be helpful, but the answer you suggested has nothing to do with downloading files, just viewing them. I have no problem viewing PDFs in Firefox. Quick View works fine. I need to download the files to my computer, and I get nothing.

Any more thoughts?

Sorry, Madperson. I thought your reply would be helpful, but the answer you suggested has nothing to do with downloading files, just viewing them. I have no problem viewing PDFs in Firefox. Quick View works fine. I need to download the files to my computer, and I get nothing.
Any more thoughts?

Question owner

I don't use the Downloads folder. Everything just goes straight to the desktop. I checked the Downloads window, however, and there is no sign of a download there. On the other hand, I have just successfully downloaded two PDF files from Gmail which are in the window, so now I have no idea what is going on :o(

I don't use the Downloads folder. Everything just goes straight to the desktop. I checked the Downloads window, however, and there is no sign of a download there. On the other hand, I have just successfully downloaded two PDF files from Gmail which are in the window, so now I have no idea what is going on :o(